fiske



(No Model.) 2 Sheets-Sheet l.

W. S. FISKE.

LUCK. N0. 399,141. Patentd Mar. 5, 1889.

(No Model.) 2 SheetsSheet 2.

W. S. FISKE.

' Patented Mar. 5, 1889 -JC V WITNESSES I IWT/ENTOR, Xwww- W (S lQ/w 7mawflm,

Attorney, I

UNITED STATES'PATENT Diaries,

"ILLIAM SHERWOOD FISKE, OF BROOKLYN, NE\\' YORK, ASSIGNOR TO THE HOPKINS& DICKINSON MANUFACTURING COMPANY, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 399,141, dated March 5,1889. Application filed Sept-ember l, 1887- $erial No. 248,520 (Nomodel.)

T Mi whom it may concern.-

Be it known that I, WILLIAM Snnnwoon i ing had to the accompanyingdrawings, and g to letters or figures of reference marked thereon, whichform a part of this specification.

Figure 1 of the drawings is a view of lockcase with works removed. Fig.2 is a plan view of lock. Fig. 3 is a front view of baseplate D. Fig. 4is a detail view of parts of lock.

The invention relates to that class of locks known as mortise-locks,wherein the mechanism within the casing can be operated upon bymechanism contained in a separate shell or cylinder lock, (for which aseparate application for Letters Patent has been made under even date,Serial No. 248,519,) that maybe attached to the mortise-lock after saidmortise-lock has been placed in its seat, or the mortise-lock can beoperated without the cylinder-lock mechanism.

Referring by letter to the accompanying drawings, A designates the mainportion of the lock-ease having a removable wall, said wall beingsecured in place by screws passed through screw-holes near the ends ofsaid removable wall into internally-threaded lugs 0, cast on the innerfaces of the end walls of the main portion A, near the transverse middlelines of said end walls.

D designates the face-plate of the lock, said face-plate being recessedon its inner face to receive the edges of the side plates and end platesof the lock-case. On its inner face, near each end, the face-plate D isprovided with inwardly-projeciing lugs E E, through which screws F arepassed into internallythreadcd lugs G, cast on the main portion of thelock'case and projecting inwardly from the end walls of said mainportion.

The faceplate D is provided with openings H and I, through which thelatch-bolt and lock-bolt, respectively hereinafter described, work whenoperated.

The latch-bolt comprises the head .I and the flat stem K, the latterbeing contained within the case and branched atits inner end to form thearms L and M. Said arms are provided with an gu lari y-bent en ds thatproject toward the removable wall of the lock-case and form the tumblersN P. Tlhebroader arm or branch, M, of the latch-bolt is slottedlongitudinally at Q to receive a stud, R, projecting inwardly from theenlarged portion S of a short rib, T, cast on the inner face of thefixed wall of the lock-case at the lower side of the opening d. In thisopening XV one end of the hub U for the lttClbbOltSPillCllG works. Thelatch-bolt stem K is provided with a pin or stud, 7", which projectstoward the fixed wall of the lockcase.

j is a spring seated in a. cleft-stud, 12, said stud being cast integralwith the fixed wall of the lock-case. The outer or free end of saidspringj presses against the pin or stud j and tends normally to pressthe latch-bolt outward. The latcl1bolt J is also provided on its loweredge with a transverse groove, 5.

is a sector-shaped buffer hinged to the inner face of the faceplate D,and has the stud s, which travels in the transverse groove 5' of thelatch-bolt. This buffer tstrikes the keeper before the latch-bolt comesin contact therewith, and, having a rotary motion, moves the latch-boltback or inward and relieves the look from any shock or jar when closingthe door.

A plain rib, Y, is cast on ihc inner face of the fixed wall of thelocleeasc opposite to and parallel with the rib T, and upon these twoparallel ribs T and Y the arms L and M of the latch-boltslide when thelatch-bolt is operated.

Resting upon or against the inner faceol" 7 the latch-bolt is abranclnnlslide, W, said slide being provided with a longitudinallydisposed slot,X, in its stem, said slot receiving the reduced portion of a shoulderedstud, Y, said stud Y being cast integral with the fixed wall of thelock-ease, projecting inwardly and at right angles thereto. The arms Y Zof the slotted branched slide VJ are provided with angularly-bent ends 12. Said ends project inwardly or toward the removable wall. The hub Ufor the knob-spindle is provided with arms 3 and i, the inner edges orfaces of said arms being plane and engaging the angularly-bent ends 1 2of the slotted branched slide V.

On its lower edge the stem K of the latchbolt is cut away or recessed,as at 5, to receive the bentend 6 of the slotted shouldered slidingfence 7. This fence 7 is provided with two slots, 7 7', and an arm, 7 f,extending laterally and at right angles to its end, said arm engaging astud or projection, 49 of a revolving-cylinder lock. Near the latch-boltstem and opposite the recess 5 a stud, 8','is cast 011 the fixed wall ofthe lock case. Looselypivoted on this stud is a slotted nsdarmn lever,8, h ving v flange, 91

.it s innernpper edge,saidfiange serving as 'a lock or stopfor thelatch-boltstem when the latter is projected. The slotted flanged leveris also provided with a slot, 10, near its free end, said slot beinginclined at an angle to the parallel edges of said lever. The lever 8rests upon the inner face of the fixed wall of the lock-case.

A double-armed lever, 11, is secured upon the cleft-stud 12. The head ofsaid stud forms the seat or fastening-point for one end of a spring, 14,which forces the branched slide XV outward by pressing against a pin orstud, 15, near the slot X. The inner or longer arm of the lever 11 isprovided with a pin, 16, which projects into the inclined slot 10 of thelever 8. The short arm of the lever 11 is provided with an ellipticalpin, 19, on its outer end. P is the lock-bolt, having the stem 18,provided with the longitudinal slot 33 to receive a stud 30 on the boss31, cast integral with the fixed wall of the lock-case. This stud 30engages either one of the rectangular notches 28 29 on the lower edge ofthe arm 21 of the angle-lever 25, asthe case may requirethat is, itengages the notch 28 when the lock-boltis projected and the notch 29when the lock-bolt is retracted.

23 is a curved recess on the upper edge of the lock-bolt stem, in whichthe elliptical pin 19 on the lever 11 seats itself when the lockbolt isprojected.

on is a rectangular notch on the upper edge of the lock-bolt stem. Thelock-bolt stem is also provided with the lugs m placed at each side ofthe notch m on the outer face of said lock-bolt stem fora purposehereinafter explained.

O is a rectangular notch on the inner lower edge of the lock-bolt stem,designed to engage the projecting lug 49 of the cylinderlock case whensaid cylinder-lock is operated. I 44 is a slide let into the opening 42of the fixed wall of the lock-case.

The lock-bolt stem has two pins or studs, 8 one on its upper edge andone on its lower edge proj ecting toward the removable wall. of

the look-case. Said pins engage the slots of the fence 7. v

18 is a cleft-stud secured to the stem of the lock-bolt, providing aseat for a flat spring, 18 the outer or free end of which engages a lug,18 on the outer edge of the fence, said spring forcing the bent end 6 ofthe fence 7 into the recess 5 on the latch-bolt stem when the lock isoperated upon by the revolvingcylinder lock.

WVhenthe lock-bolt is operated by a spindle in the squared opening ofthe hub 32, the fence'7 is dispensed with.

Upon the inner face of the stem of the lockbolt 18 is pivoted a lever,20, on the upper stud, 8 said lever being provided at its outer en dwith a rounded dog, 21, which enters a curved notch, 22, at the junctionof the long and short arms 23 and2jt of an angle-lever, 25 Angle-lever25is pivoted on a pin or a stud, 27, entering a perforation, 26, in thelock-bolt stem immediately in the rear of the shoulder or head P of thelock-bolt.

A flat spring, 17, has one of its ends secured in a recess in the loweredge of the lever 20, the outer or free end bearing against the up peredge of the arm 24 of the angle-lever 25. This spring normally pressesthe angle-lever 25 against the stud 30 and the lever 20 against thehub.32, said hub being provided at diametricallyopposite sides with theradial arms a n the arms a being located above and shorter than the armsn.

43 is a threaded rod passing through asuitable opening in the lug 45,said lug being cast integral with the fixed wall of the lockcase andacts as a bearing for the rod a3.

41 is a slide seated in the opening 42 of the fixed wall of thelock-case, said slide having a threaded opening in. which one end of therod 43 is screwed. i7 is a forked plate which engages the encirclinggroove 46 on the rod i3. This forked plate is designed'to lock the rod43 when the cylinder-lock is seated in the opening y, and prevents theaccidental removal of said cylinder-lock from its seat. This rod isdesigned to force the slide ii against a shoulder on the cylinderlockand secure it in the openingy of the said wall of the mortisedock.

The operation of the mortise-lock without against the arm 23 of theangle-lever 25, which frees the arm 24 from the pin 30 and enables thelock-bolt to be projected. \Vhen the lock-bolt arrives at the end of itstravel, the spring 11 forces the elliptical pin 19 on the lever 11 intoIIO the recess 23, forcing the slotted flanged lever 8 up, and causesthe flange 9 to pass back of the latch-bolt stem, thus locking saidlatch-bolt. Immediately after the pin 19 comes in contact with the arm:23 of the angle-lever 25 the spring 17 forces the notch 28 011 the arm24: against the stud 30. To unlock the lock-bolt, turn the spindle inthe opposite direction from that used in locking it. The arms a on thehub 32 cause the rounded do 21 of the lever 20 to bear against the upperedge of the rounded notch 22, which movement causes the arm to force theelliptical pin 19 out of the recess 23, at the same time withdrawing theflange 9 of the lever 8 from engagement with the latch-bolt stem. Bycontinuing to turn the hub 32 the lock-bolt can be rei I'ZICtQii.

Having described my invention, what I claim isl. The combination, withthe lock-case, lockbolt and latch-bolt, and operating-cylinder, ot theslotted sliding fence connecting said lockbolt and latch-bolt andgoverning the movements thereof, whereby said bolts are operatedsimultaneously as well as indepeinlent-ly, substantially as specified 2.The combination, with the lock-case pro \ided with a stud, 30, engaginga loclebolt having a spring-actuated notched angle-lever, a latch-boltprovided with a slot or guideway,

and a shouldered stud, R, on the lock-case, of a slotted sliding fenceadapted to engage a recess of the latch-bolt, and a cylinder-lockmechanism for rotating the sliding fence, substantially as specified.

3. The combination, with the loclecase, of the slotted and notchedloclebolt, the pivoted and notched angle-lever resting against the stemof the loclebolt, the spring-actuated 1ever having the rounded dogengaging the notched angle-lever on the stem of the lockbolt, thepivoted slotted lever having the flange or stop at its inner end, thelatch-bolt having the slotted branched stem engaging the shouldered studon the inner one of the parallel ribs, the ln'anohed and slotted slideresting on the stem of the latch-bolt, the pivoted lever provided withpins at its ends and engaging the notched angle-lever, and the pivotedlever connected with flanged and slotted stop-lever, the slotted andshouldered sliding fence, and the armed hubs for operating thelatch-bolt and lock-bolt, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

\VILLIAM SHERXVOOI') FISKE.

Witnesses:

ERWIN J. (inane, CHAS. T. YOUNG.

